The Law of Cosines
1 Use the Law of Cosines $$a = 4 , c = 2 , B = 90 ^ { \circ }$$

Multiple Choice

The Law of Cosines
1 Use the Law of Cosines to Solve Oblique Triangles
- $$a = 4 , c = 2 , B = 90 ^ { \circ }$$

A) $\mathrm { b } = 4.5 , \mathrm {~A} = 63 ^ { \circ } , \mathrm { C } = 27 ^ { \circ }$
B) $\mathrm { b } = 4.5 , \mathrm {~A} = 27 ^ { \circ } , \mathrm { C } = 63 ^ { \circ }$
C) $\mathrm { b } = 5.5 , \mathrm {~A} = 63 ^ { \circ } , \mathrm { C } = 27 ^ { \circ }$
D) $b = 3.5 , \mathrm {~A} = 27 ^ { \circ } , \mathrm { C } = 63 ^ { \circ }$